body {
  margin: 0;
  overflow: hidden;
}
 
::-webkit-scrollbar {
  width : 9px;
  height: 9px;
}
 
::-webkit-scrollbar-thumb {
  border-radius     : 20px;
  background        : #686868;
  -webkit-box-shadow: inset 0 0 6px #686868;
}
#loading {
  position: fixed;
  z-index: 999;
  width: 100%;
  height: 100vh;
  text-align: center;
  line-height: 50px;
  display: block;
  background: #fff;
}

#bar {
  font-size: 14px;
  position: fixed;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 99;
  padding: 0 5px;
  right: 0;
  top: 0;
  width: 150px;
  max-height:500px;
  display: block;
  border: 1px solid #ccc;
  background: #fff;
}

#bar div {
  float: left;
  width: 100%;
  margin: 4px 0;
}

#bar span {
  float: right;
  width: 16px;
  height: 20px;
  cursor: pointer;
  text-align: center;
  margin-left: 5px;
  line-height: 20px;
  background-color: #f1f1f1;
}

.line {
  overflow: hidden;
  width: 100%;
  height: 1px;
  line-height: 1px;
  background: #eee;
}